
House mice
Mus musculus
Small, gray-brown mice with large ears and a nearly hairless tail about as long as the body. House mice live comfortably inside buildings year-round, nesting behind refrigerators and stoves, in wall voids, cabinets, garages and cluttered storage. A female can produce a litter roughly every three weeks, and young mice breed at about six weeks old, so a pair in October can become dozens by spring.






